40064515220 has 24 divisors (see below), whose sum is σ = 85561509600. Its totient is φ = 15754181792.

The previous prime is 40064515217. The next prime is 40064515223. The reversal of 40064515220 is 2251546004.

It is an interprime number because it is at equal distance from previous prime (40064515217) and next prime (40064515223).

It is a super-2 number, since 2×40064515220² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40064515223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16975310 + ... + 16977669.

It is an arithmetic number, because the mean of its divisors is an integer number (3565062900).

Almost surely, 2^40064515220 is an apocalyptic number.

It is an amenable number.

40064515220 is an abundant number, since it is smaller than the sum of its proper divisors (45496994380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40064515220 is a wasteful number, since it uses less digits than its factorization.

40064515220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33953047 (or 33953045 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 40064515220 in words is "forty billion, sixty-four million, five hundred fifteen thousand, two hundred twenty".